Alert archive / South Dakota / Flash Flood Warnings in 2020
Flash Flood Warning 1, NWS Aberdeen, SD
NWS Aberdeen, SD issued this flash flood warning at Jul 22, 2020, 8:04 AM MDT for Dewey County, South Dakota. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 22, 2020, 8:04 AM MDT (14:04 UTC)
- Expired
- Jul 22, 2020, 11:00 AM MDT
- In force
- 3 hr
- Issued by
- NWS Aberdeen, SD
- Area
- Storm-based polygon
- Flood severity
- None
County Dewey County, SD
The radar
The Bismarck radar (KBIS), 180 km from the middle of the area, began a volume at 14:04 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 22, 5:38 AM MDT | Severe Thunderstorm Warning | ABR | Dewey | 67 min |
| Jul 22, 7:07 AM MDT | Severe Thunderstorm Warning | ABR | Dewey | 38 min |
| Jul 22, 7:08 AM MDT | Severe Thunderstorm Warning | ABR | Dewey, Potter, Sully | 52 min |
| Jul 22, 7:09 AM MDT | Severe Thunderstorm Warning | ABR | Dewey | 36 min |
| Jul 22, 7:44 AM MDT | Severe Thunderstorm Warning | ABR | Dewey | 12 min |
| Jul 22, 7:47 AM MDT | Severe Thunderstorm Warning | ABR | Dewey, Hughes, Sully | 43 min |
| Jul 22, 8:10 AM MDT | Severe Thunderstorm Warning | ABR | Dewey | 50 min |
| Jul 22, 8:38 AM MDT | Severe Thunderstorm Warning | ABR | Hughes, Hyde, Sully | 15 min |
| Jul 22, 8:46 AM MDT | Severe Thunderstorm Warning | ABR | Dewey, Potter, Sully | 44 min |
| Jul 22, 9:12 AM MDT | Flash Flood Warning | ABR | Dewey, Sully | 3 hr |
| Jul 22, 11:02 AM MDT | Areal Flood Warning | ABR | Dewey | 3 hr |
Nearby
Flash Flood Warnings in South Dakota, 2020Every flash flood warning in 2020
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.